llvm-project

Commit Graph

Author	SHA1	Message	Date
Kyle Butt	efe56fed12	Revert "CodeGen: Allow small copyable blocks to "break" the CFG." This reverts commit ada6595a526d71df04988eb0a4b4fe84df398ded. This needs a simple probability check because there are some cases where it is not profitable. llvm-svn: 291695	2017-01-11 19:55:19 +00:00
Kyle Butt	df27aa8c89	CodeGen: Allow small copyable blocks to "break" the CFG. When choosing the best successor for a block, ordinarily we would have preferred a block that preserves the CFG unless there is a strong probability the other direction. For small blocks that can be duplicated we now skip that requirement as well. Differential revision: https://reviews.llvm.org/D27742 llvm-svn: 291609	2017-01-10 23:04:30 +00:00
Akira Hatanaka	7cc27649a6	[X86] Mark pseudo instruction TEST8ri_NOEREX as hasSIdeEffects=0. Also, add a case clause in X86InstrInfo::shouldScheduleAdjacent to enable macro-fusion. <rdar://problem/15680770> llvm-svn: 212747	2014-07-10 18:00:53 +00:00

Author

SHA1

Message

Date

Kyle Butt

efe56fed12

Revert "CodeGen: Allow small copyable blocks to "break" the CFG."

This reverts commit ada6595a526d71df04988eb0a4b4fe84df398ded.

This needs a simple probability check because there are some cases where it is
not profitable.

llvm-svn: 291695

2017-01-11 19:55:19 +00:00

Kyle Butt

df27aa8c89

CodeGen: Allow small copyable blocks to "break" the CFG.

When choosing the best successor for a block, ordinarily we would have preferred
a block that preserves the CFG unless there is a strong probability the other
direction. For small blocks that can be duplicated we now skip that requirement
as well.

Differential revision: https://reviews.llvm.org/D27742

llvm-svn: 291609

2017-01-10 23:04:30 +00:00

Akira Hatanaka

7cc27649a6

[X86] Mark pseudo instruction TEST8ri_NOEREX as hasSIdeEffects=0.

Also, add a case clause in X86InstrInfo::shouldScheduleAdjacent to enable
macro-fusion.

<rdar://problem/15680770>

llvm-svn: 212747

2014-07-10 18:00:53 +00:00

3 Commits